Welcome to the AC Tropical Fish aquarium forum. Our aquarium forum is the place to discuss any aquarium related issue in a friendly environment. Our aquarium forum welcomes aquarists of all levels from beginners to experts. Please ask a question in the how to section of our forum or read the FAQ section if you have any questions. register to and become a part of our friendly aquarium forum community today.

Bio-MAX filter media are inert ceramic rings that are capable of supporting large populations of water purifying bacteria. Composed of a variety of channels and tunnels the multitude of tiny pores can support these colonies of beneficial bacteria. Bio-MAX is an ideal biological filter media that will make the most of any filter system due to its huge capacity to support the organisms responsible for metabolizing ammonia and nitrite.